test(module:image): test failing after upgrade

[ParsaArvanehPA]

PR Checklist

Please check if your PR fulfills the following requirements:

• [✔] The commit message follows our guidelines: https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/CONTRIBUTING.md#commit
• [✔] Tests for the changes have been added (for bug fixes / features)
• [✔] Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• [✔] Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Application (the showcase website) / infrastructure changes
• Other... Please describe:

What is the current behavior?

currently should placeholder src work fails on the github's test pipe; I coudn't produce this behaviuor on my windows machine, but given the code, increasing the tick time might fix it.

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• [✔] No

Other information

[zorro-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.15%. Comparing base (6311783) to head (5469c70).
Report is 4 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #8766   +/-   ##
=======================================
  Coverage   93.15%   93.15%           
=======================================
  Files         538      538           
  Lines       18456    18457    +1     
  Branches     2816     2816           
=======================================
+ Hits        17192    17194    +2     
+ Misses       1226     1225    -1     
  Partials       38       38           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[Laffery]

LGTM